I think if you really categorize precious metals as money, then I think only silver is a real "precious metal" money.
Gold still suffers from lack of divisibility which is a core property of money. Prices are generally relatively too low for gold, so this makes trade very difficult with standardized gold coins or gold cubes.
So for everyday goods standardized silver coins, cubes or rounds are a better physical "money".
Gresham's Law
I`m not saying gold=silver, because it clearly is not equal.
But at current silver/gold rates, you can see that from a healthy 20:1 ratio the ratio now is over 60.
So just from an investment standpoint, if the precious markets kickoff, you could make a bigger ROI with silver, than with gold.